| .. _osdp-sample: |
| |
| OSDP |
| #### |
| |
| OSDP describes the communication interface one or more Peripheral Devices (PD) |
| to a Control Panel (CP). The specification describes the protocol |
| implementation over a two-wire RS-485 multi-drop serial communication channel. |
| Nevertheless, this protocol can be used to transfer secure byte stream over any |
| physical channel in low memory embedded devices. |
| |
| Although OSDP is steered towards the Access and Security industries, it can be |
| used as a general communication protocol for devices in a secure way without |
| too much resource requirements. The security is not top-notch (AES-128) but it |
| is reasonable enough, given that the alternative is no security at all. |
| |
| OSDP Supports the control of the following components on a PD: |
| - LED |
| - Buzzer |
| - Keypad |
| - Output (GPIOs) |
| - Input Control (GPIOs) |
| - Displays |
| - Device status (tamper, power, etc.,) |
| - Card Reader |
| - Fingerprint Reader |
